Purpose: Retinitis pigmentosa (RP) is a hereditary disease causing photoreceptor degeneration
and permanent vision loss. Retinal implantation of a stimulating electrode array is a new …

Single neurons in areas V1 and V2 of macaque visual cortex respond selectively to
luminance-modulated stimuli. These responses are often influenced by context, for example when …

Amblyopia is a developmental disorder resulting in poor vision in one eye. The mechanism
by which input to the affected eye is prevented from reaching the level of awareness remains …

A neurostimulator application-specific integrated circuit (ASIC) with scalable circuitry that can
stimulate 14 channels, has been developed for an epi-retinal vision prosthesis. This ASIC …

A virtual-reality simulation tested prosthetic visual acuity for both rectangular and hexagonal
phosphene grids. Thirteen normally sighted, untrained subjects were required to identify the …

… A, For an example array placement in the control animal, responses of the left eye (LE) to …
B, For the same multiunit sites, an LE mask similarly attenuated RE grating responses. C, In …

… LE stimulus, we averaged fundamental responses on all 37 trials of that stimulus (shown in
Fig. 2 as a column average). In doing so, we assumed that, because LE … to the LE modulator …

A variety of cues can differentiate objects from their surrounds. These include “first-order”
cues such as luminance modulations and “second-order” cues involving modulations of …

Microelectronic vision prosthesis proposes to render luminous spots (so-called phosphenes)
in the visual field of the otherwise blind subject by way of an implanted array of stimulating …

Sleep apnea (SA) is a common disorder involving the cessation of breathing during sleep. It
can cause daytime hypersomnia, accidents, and, if allowed to progress, serious, chronic …